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. Author manuscript; available in PMC: 2016 Jun 16.
Published in final edited form as: J Clin Epidemiol. 2015 Dec 21;74:57–65. doi: 10.1016/j.jclinepi.2015.12.003

Table 3.

Meta-analysis comparing the reasons for missing data in the intervention compared to the control trial arms

Reason for missing data Death Disease progression Adverse effects
Number of trials 57            39         15
Point estimate 0.92 1.31 2.35
Lower limit 0.78 1.02 1.44
Upper limit 1.08 1.69 3.86
Cochran Q 51.8            26.3         14.7
DF 56            38         14
P-value 0.6              0.9 0.4
I2 0.0              0.0 5.0
Tau2 0.0              0.0    0.05

Abbreviation: DF, Degrees of freedom.